feat: Custom Executor for Android

Author: gaodeng

android/build.gradle

@@ -30,6 +30,10 @@ if( newDbSize != null && newDbSize.isLong()) {
     dbSizeInMB = newDbSize.toLong()
 }
 
+def useCustomExecutor = rootProject.hasProperty('AsyncStorage_useCustomExecutor')
+        ? rootProject.properties['AsyncStorage_useCustomExecutor']
+        : false
+
 apply plugin: 'com.android.library'
 
 android {
@@ -41,6 +45,7 @@ android {
         targetSdkVersion getExtOrIntegerDefault('targetSdkVersion')
 
         buildConfigField "Long", "AsyncStorage_db_size", "${dbSizeInMB}L"
+        buildConfigField("boolean", "AsyncStorage_useCustomExecutor", "${useCustomExecutor}")
     }
 }
 

android/src/main/java/com/reactnativecommunity/asyncstorage/AsyncStorageModule.java

@@ -29,6 +29,7 @@
 import java.util.ArrayDeque;
 import java.util.HashSet;
 import java.util.concurrent.Executor;
+import java.util.concurrent.Executors;
 
 @ReactModule(name = AsyncStorageModule.NAME)
 public final class AsyncStorageModule
@@ -78,7 +79,12 @@ synchronized void scheduleNext() {
   private final SerialExecutor executor;
 
   public AsyncStorageModule(ReactApplicationContext reactContext) {
-    this(reactContext, AsyncTask.THREAD_POOL_EXECUTOR);
+    this(
+      reactContext,
+      BuildConfig.AsyncStorage_useCustomExecutor
+        ? Executors.newSingleThreadExecutor()
+        : AsyncTask.THREAD_POOL_EXECUTOR
+    );
   }
 
   @VisibleForTesting